1426668730 has 24 divisors (see below), whose sum is σ = 2727954108. Its totient is φ = 537097728.

The previous prime is 1426668703. The next prime is 1426668743. The reversal of 1426668730 is 378666241.

It can be written as a sum of positive squares in 6 ways, for example, as 682306641 + 744362089 = 26121^2 + 27283^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243939 + ... + 249718.

Almost surely, 2^1426668730 is an apocalyptic number.

1426668730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1426668730 is a deficient number, since it is larger than the sum of its proper divisors (1301285378).

1426668730 is a wasteful number, since it uses less digits than its factorization.

1426668730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493698 (or 493681 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 1426668730 is about 37771.2685781137. The cubic root of 1426668730 is about 1125.7476459045.

The spelling of 1426668730 in words is "one billion, four hundred twenty-six million, six hundred sixty-eight thousand, seven hundred thirty".